Metal building construction.



A. K. PRUDEN. METAL BULLDWG cowsmawow.

APPLICATION FlLiD APR. 89 (915.

, Ira @771 JFZ 15. FM"

WIT/1 053 LM-e I STATES PATENT ALLAN K. PRUDEN,

OF ST. PAUL, MINNESOTA, ASSIGNOR TO METAL SHELTER. COMPANY, OF ST. PAUL,MINNESOTA.

METAL BUILDING CONSTRUCTION.

T 0 all whom it may concern:

Be it known that I, ALLAN K. PRUDEN, a citizen of the United States,residing at St. Paul, inthe county of Ramsey and State of Minnesota,have invented new and useful Improvements in Metal BuildingConstruction.

My invention relates. to improvements in the construction of metalbuildings or shelters and more 'iarticularly .to a method of forming theedges of the metal used inthe side walls and roof of the building, so asto form substantial studding from the metal itself.

'The object of my invention is to form studding from the metal that Wlllstrengthen and reinforce the building and The drawing discloses part ofaside wall and roof of a metal building. in which my improved form ofmetal studding. is used in the side wall.

The appearance of the'improved studding is shown in general in Figured,and Fig. 2 is a horizontal sectiono't one of the improved forms of studsand a part of two sheets of HICtillJCOllflCCtOd thereby.

In Fig. 2, I show part of a metal sheet 1 bent at right angles to formthe flange 2, which in turn is bent back at an acute angle at 3, leavingthe projection 4-at'the extreme edge of the sheet The other edge of thesame sheet would be formed as is the sheet 5, whieh showsa told at ttorreeeirel the angle 7 of sheet 1 and which also has a llange 8 formedwith a sharp bend at 9, leaving a projection 10 at the extreme edge. Thelength of the brojertions 4 and 10 and the angles they form with flanges2 and 8 respe ,ti\el v, are such that the extreme edge ,I' (h rojectionlU bears strongly on the [H'ujmliull H. giving a. tension that tends tokeep the angle 7 of sheet I pressed tightl) against. the interior angleat (i ofthe part 5.

ll is evident from -lludrawing that the relati n of parts may be suehthat sheet |llllllll(l' l as t oriued may he slipped into the flange 3aof sheet number 5 and form a sub stautially tight joint between 6 and 7'due Specification of Letters Patent. Patented Sept. 19, 1916.

Application filed Aprll19,1915. Serial ac. 22,366. 4 i I V to thepressure exerted on 4 by the'tension of the part 1G.

The construction as shown may also be used in joining sections of a roofor other surfaces and while in this specification and drawing, I haveshown one particular method of forming the studding, it is evident myinvention'may be applied in other manners and I do not wish to beunderstood as confining myself to the application or" arrangement ofparts as described except as the scope of the invention is limited inthe following claims:

Having described my invention, what I claim'a's new and desire toprotect by Let ters Patent, is: i

V l. A sheetmetal wallvstructure-comprising in combination with a'pairof wall plates, flanges projecting from each of two adjacent plates at aright angle in the same direction from the plane of said plates, saidflanges being. bent overat their free ends to form flange extensionsunder an acute angle and one'of the plates being provided with a planeextension at the foot of the pertaining flange, '-the flange andangularextension of one plate being nested' between the two extensiongotthe other plate and the flange extension on the inner member inthatOflllt? outer member, whereby the mem-' hers are securely interlocked;

2. A sheet metal wall'structure comprising in combination with a pair ofwall plates, flanges projecting from each of two adjacent plates ataright angle in the same direction from theplane of said plates, saidclined to the flange at. a greater angle than flanges being bent over attheir free ends to form flange extensions under an acute angle and oneof the'plates being provided with a plane extensionat the foot of thepertaining flange parallel to the plane. of the pertaining wall plate.the. flange and angular ALLAN K. PRUDEN.

